Date: Fri, 10 Aug 2001 13:34:48 +0200 (CEST) From: Nils M Holm <nmh@t3x.org> To: FreeBSD-gnats-submit@freebsd.org Subject: bin/29601: Re: doscmd INT 10, FNs 0x09,0x0A cause wrong output Message-ID: <Pine.BSF.4.21.0108101331390.881-100000@Oxygen2.UUCP> In-Reply-To: <Pine.BSF.4.21.0108091915070.1900-100000@Oxygen2.UUCP>
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>Number: 29601
>Category: bin
>Synopsis: doscmd INT 10, FNs 0x09,0x0A cause wrong output
>Confidential: yes
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Aug 10 04:40:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Nils M Holm
>Release: FreeBSD 4.2-RELEASE i386
>Organization:
>Environment:
>Description:
Sorry, my original fix had a side effect and is unusable.
Here is an improved one.
>How-To-Repeat:
>Fix:
--- /usr/src/usr.bin/doscmd/doscmd.h.org Fri Aug 10 13:28:30 2001
+++ /usr/src/usr.bin/doscmd/doscmd.h Fri Aug 10 13:26:09 2001
@@ -278,7 +278,7 @@
void tty_move(int, int);
void tty_report(int *, int *);
void tty_flush();
-void tty_index();
+void tty_index(int);
void tty_pause();
int tty_peek(REGISTERS, int);
int tty_state();
--- /usr/src/usr.bin/doscmd/tty.c.org Thu Aug 9 19:03:25 2001
+++ /usr/src/usr.bin/doscmd/tty.c Fri Aug 10 13:25:35 2001
@@ -1586,7 +1586,7 @@
}
void
-tty_index()
+tty_index(int scroll)
{
int i;
@@ -1594,9 +1594,11 @@
row = 0;
else if (++row >= height) {
row = height - 1;
- memcpy(vmem, &vmem[width], 2 * width * (height - 1));
- for (i = 0; i < width; ++i)
- vmem[(height - 1) * width + i] = vattr | ' ';
+ if (scroll) {
+ memcpy(vmem, &vmem[width], 2 * width * (height - 1));
+ for (i = 0; i < width; ++i)
+ vmem[(height - 1) * width + i] = vattr | ' ';
+ }
}
SetVREGCur();
}
@@ -1639,19 +1641,19 @@
col = (col + 8) & ~0x07;
if (col > width) {
col = 0;
- tty_index();
+ tty_index(1);
}
break;
case '\r':
col = 0;
break;
case '\n':
- tty_index();
+ tty_index(1);
break;
default:
if (col >= width) {
col = 0;
- tty_index();
+ tty_index(1);
}
if (row > (height - 1))
row = 0;
@@ -1676,7 +1678,7 @@
while (n--) {
if (col >= width) {
col = 0;
- tty_index();
+ tty_index(0);
}
if (row > (height - 1))
row = 0;
>Release-Note:
>Audit-Trail:
>Unformatted:
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